diff options
| author | Wonkon Kim <wkon.kim@samsung.com> | 2025-10-20 15:15:38 +0900 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2025-10-21 21:02:46 -0400 |
| commit | 6fe4c679dde3075cb481beb3945269bb2ef8b19a (patch) | |
| tree | c1c164e89cd79b04379c5d252a5efdc8db0406c8 | |
| parent | e23ef4f22db30a1e49c8b060e4ebc9dc9ca99c49 (diff) | |
scsi: ufs: core: Initialize value of an attribute returned by uic cmd
If ufshcd_send_cmd() fails, *mib_val may have a garbage value. It can
get an unintended value of an attribute.
Make ufshcd_dme_get_attr() always initialize *mib_val.
Fixes: 12b4fdb4f6bc ("[SCSI] ufs: add dme configuration primitives")
Signed-off-by: Wonkon Kim <wkon.kim@samsung.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251020061539.28661-2-wkon.kim@samsung.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/ufs/core/ufshcd.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 8f4e884892a9..498c0c8c0a6b 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -4282,8 +4282,8 @@ int ufshcd_dme_get_attr(struct ufs_hba *hba, u32 attr_sel, get, UIC_GET_ATTR_ID(attr_sel), UFS_UIC_COMMAND_RETRIES - retries); - if (mib_val && !ret) - *mib_val = uic_cmd.argument3; + if (mib_val) + *mib_val = ret == 0 ? uic_cmd.argument3 : 0; if (peer && (hba->quirks & UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE) && pwr_mode_change) |